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carat vs. color  length*  width*
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0.94 Ct Sapphire (Pear)

vs

0.9 Ct Diamond (Round)

violet
 
dark bluish green
8×5 mm 6.28×6.28 mm
actual size
Actual size of 0.94ct Sapphire   Actual size of 0.9ct Diamond
 
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Ring: Skin tone:
Ring width: 3.0 mm
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Left finger image
Ring on left finger
Violet 0.94ct Sapphire on a ring
64 mm
Right finger image
Ring on a right finger
Dark Bluish Green 0.9ct Diamond on a ring
Your settings
Ring
Gold
Skin tone
Light
Ring diameter
16.9 mm
Ring width
3.0 mm
Finger length
64 mm
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Ring diameter: 16.9 mm
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Actual sizes of 0.94ct Sapphire Pear (8×5mm, Violet) and 0.9ct Diamond Round (6.28×6.28mm, Dark Bluish Green) as they would appear on a ring and finger. Adjust the ring and finger size to get an idea of how these gemstones would look on your finger.

Where to buy?

JamesAllen → high-quality gemstones (Rubies, Saphhires, Emeralds) and especially Diamonds, high-end jewelry and competitive prices. Highly recommended.
Amazon → usually offers a good selection from many different vendors. Worth a check.

Face-up Size

All things being equal, Sapphire will face-up smaller than Diamond for a given carat weight, because it has higher specific gravity (4 vs. 3.52 - this means it's "heavier" compared to Diamond of the same size). Face-up size also depends heavily on the proportions of the cut.

Face-up area is a measure of the size of the gem when viewed from above (as set in a ring). It tells you how big the gem is at the girdle plane.


0.94 Ct Sapphire (Pear) 0.9 Ct Diamond (Round)
8×5 mm vs 6.28×6.28 mm
29.2 mm²   30.97 mm²
Face-up size outline
Face-up size outline
0.94ct Sapphire Pear (8×5mm)
0.9ct Diamond Round (6.28×6.28mm)
Difference: 6% (1.77 mm²)
0.9ct Diamond Round (6.28×6.28mm) has approx. 6% more face-up area than 0.94ct Sapphire Pear (8×5mm).


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If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.